myri10ge: optimize 4k-boundary check when stocking rx pages
Small optimization to the code which checks to see if we'd cross a 4K boundary when stocking RX ring. Signed-off-by: NBrice Goglin <brice@myri.com> Signed-off-by: NAndrew Gallatin <gallatin@myri.com> Signed-off-by: NGuillaume Morin <guillaume@morinfr.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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